30 CFR Topic
Surface Only
July 29, 2020
§
57.12065
Short circuit and lightning protection
§
57.12066
Guarding trolley wires and bare powerlines
§
57.12067
Installation of transformers
§
57.12068
Locking transformer enclosures
§
57.12069
Lightning protection for telephone wires and ungrounded conductors
§
57.12071
Movement or operation of equipment near high-voltage powerlines